Telephone-call meter.



No. 822,719. PATENTEDJUNE5,1906. 0. TEEEAEEEAW.

TELEPHONE CALL METER;

APPLICATION FILED GOT-3. 1903.

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PATENTED JUNE 5, 1906.

E No. 822

E C. T. BRADSHAW.

TELEPHONE GALE METER.

APPLIGATION FILED 0013. 1903.

2 SHEETS-SHEET 2.

WITNESSES:

M m w A Tram/HQ iJ-NITED s'rAr s "PATENT GFFTGE.

CHARLES T. BRADSHAW, on PHILADELPHIA, PENNSYLVANIA.

' TELEPHONE-CALLMMETE'R.

Specification of Letters Patent.

Patented June 5, 1906.

Application filedOctober s, i903 Serial No. 176,566.

To all whom it may concern:

Be it known 'that'LCHARLEs T. BRAD-- SH a citizen {of the United States, and a resident of the city of Philadelphia, State of 'Pennsylvania,have invented certain new and useful Im rovements in-Telephone-CallMeters, of whi ch the-following 1s a' full,.-.clear,

" and complete disclosure.

' My' vention relates to means for registering telephone calls, and more articularly to devices whereby the 'subscri er may kee 7 track of and check the number 0f cal s a charged up to him at the centralofiice to prevent mistakes and overcharges by the tele-' phone company. I

' Briefly stated, my invention comprises a meter or'registering device-. which may be attached to a telephone instrument in such a manner as to be easil operated by the sub.- sc'riber or person tal zing through the telephone/including also means for preventin the registering device from being operate when t e telephone is not in use.

For a Tull, clear, and exact descri tion of m invention reference may be ha to the fo lowing specification, and to the 'accompanyin drawings, forming a part thereof, in

whic

Figure 1 is an elevation. of a telephone transmitter and receiverin the form of a desk instrument, showing'm recording or registering deviceapplied tiiereto; Fig. 2, a reverse view of the same instrument, showing the rear thereof and also showing the back ,of the recorder removed; Fig. 3, a lan view of the recording device, showing t e to of the casing removed; Fig. 4 a rear view 0 the recording mechanism somewhat enlarged and detached from the casing;Fig. 5, a 'sectional view of the recording mechanism, taken substantially on the line 5 5, Fi 3; Fig. 6, in elevation of the recordingmec anism, showing one side of the'casing removed; Fig. 7, an elevation of the recording mechanism, showing a side opposite to that shown in Fig. 6; Fig. 8, a view showing a modified form of the means for actuating the record-' ingdevice, and Fig. 9 a detail view showing projection forv the operating lever.- with, its preventing said lever from eing moved when the telephone is not in use. e Referring to th drawings, the numeral 1 indicates the supporting post or standard for the transmitter 2. The numeral 3 indicates 5 may be attached to the standard 1 or other part which carries the. transmitter; but it should be supported 1n such a way that the arm-7 may easily engage the arm orlever 3. These are the general arrangements of the principal parts of mydevice, and I shall now proceed to describe the details thereof.

5 The casing 5 has up'pn its front a plurality .of indicating-dials w ch are arranged in the usual manner of meters and other recording instruments. The hands or indicators 8, 9, and 10 are mounted upon shafts 11, 12, and 13, respectivel The shaft 13 carries astarwheel 14, 'whic 1 is rotated tooth by tooth b means of abent arm 15, carried by'the sha t 12. The shaft 12 also carries astar-wheel12, which is similarly moved tooth by tooth by means of a bent arm 16, carried by the shaft 11. The shaft 11 also carries a ratchetwheel 17, which is ada ted to be operated by the lever 6 in the fo lowin manner: The arm 6 projects from a centra plate 18, having a hole 19 therein, through which one end of the shaft 11 is adapted to pass. The plate 18 is also providedwith a projection 20, the function of which is to be hereinafter dc scribed and is also attached to a spring for kee ing the arm in its raised position. Attac ed to the top of the arm 6 is a sprin 9, forminga pawl which engages the teet of the ratchet-wheel 17. Each of the. shafts 11, 12, and 13 is provided with springs 21, which are adapted to hold said shafts frictionally to prevent .them from being easily rotated.

It will now be seen each oscillation will cause the ratchet-wheel 17 to advance one tooth. Every revolution of the ratchet-wheel 17 will advance the star" wheel 12 one tooth, and every revolution of this star-wheel will advance the star-Wheel 14 one tooth. This will cause the hands on the I at as the lever 6 is -operated by oscillating the same vertically 2 sea??? front of the casing to indicate successively units, tens, and hundreds. If a greater number of hands and corresponding dials are used, it is obvious that a larger number of calls may be recorded.

ln connection with the recording device I prefer to provide means whereby an audible signal is given when thearm is operated to register a telephone-call. This consists of a awl or arm 22, pivoted at the point 23 and aving a spring extension 24, provided with a knob or hammenl25. A small gong or'bell 26 is located adjacent the hammer 25, so that when the arm 22 drops from each of the teeth of the ratchet-Wheel 17 under the influence of mitter 2, and so to the operator at the central station, which will thereby indicate to her also that a cal-l'has been registered;

The device for preventing the operation of the leveror arm 6 When the receiver 4 is on the arm 3 consists of the following parts The lever 7 loosely engages the arm 6 and is pivoted at 28 to a projection 29, extending from the casing 5. A coiled'spring' 30, one end of which is attachedto the lever 7 and the other endafiixed to the pivot 28, tends to rotate said lever upon its pivot, so that its outer end, or that connected to the arm 3 ,will be pulled downward. The inner end of the lever 7 passes through the casing 5 and extends to a point, adjacent the projection 20 where it carries an upturned lug 31, which is adapted to come into the path ofthe projection 20 when the receiver is in position upon the arm or lever 7. It will now be seen that the arm 6 can be operated only when thereceiver is removed from the arm 7, which will effectively prevent persons from inadvertently or intentionally recording strokes when calls have not been made.

The arm 7 may be provided with means for adjusting the length of the same to correspond to different sizes of instruments and difl'erent conditions of arrangement and position This adjustable feature consists of a socket portion 32, Within which the outer end portion 33 of the arm is adapted to be held by means of a screw 34.

In the modified form shown in Fig, 8 I make use of a puslr-l uttrm 35 instead of the projecting lover 6 for the purpose of operatmg the registering device. The push-button 35 is mounted upon a vertical rod 36, which has at its lower end spring-pawl 37, adapted to engage the ratcl'iet-wheel 17. A pin or other sto 38 is fixed to the rod 36 and contacts wit 1 a link 39, which is pivoted at its lower end in 'the lover 7. A. spring 40 surrounds the rod 36 and bears at its upper end against the pin38 or the link 39 to keep said rod 36 and the button $5 its raised posision. The spring 40 at its lowerend bears against a support 41,. attached to the casing 5. It will be seen thatthis modification op-' crates in substantially the same manner as that first described, the button 35 and the rod 36 being only necessary where it is preferred on account of its appearance or conveniencei,

plied to any other form of telephone instrument which may be iifuse in connection with any particular system, it only being necessary to change the proportion and arrangeinstruments of different makes.

My improved device may of course be ap- *inent of parts to accommodate the same to Having thus described my invention, what I claim, and desire to protect by Letters Patent of the United States,

- 1. In a registerin device for telephones, the combination with a subscribers set, of a visible register attached to one part of said set,'an audible signal o er'ated by said register, said audible signal sing in phonetic eon- I nection with said subscribers set, handoperated means for operating said register, a receiver-holder and a locking-lever actuated by said receiver-holder for said hand-operated means.

2. As an article or manufacture, a registering device for telephones, comprising a cas-' ing, a registering mechanism w thin said casing, a part projecting from said casing and operatively connected with said registering mechanism, a lever pivoted. in relation to saic casing, the inner end of which forms a stop for locking said registering mechanism, said lever being adapted to be operatively connected with the receiverearm of a telephone anism when the telephone is not in use.

3. In a registering device for telephones, a combination with a subscriber s set, of a register attached to one part of said set, hand. operated means for actuating said register, and means connected with. a movable openinstrument so as to lock said registering moch- I'IO' ating part of said set for locking said hando )erated means to prevent a movement of t e same, and to prevent the register from being actuated, respectively, when the telephone is not in use.

4. In a registering device for telephones, the combination with a subscribers set, of a register attached to one part of said set, handoperated. means 'for'actuating said register and a locking device connected to the re;

ceivcr-holderof the telephone for locking said hand-actuated means.

- 5. In a registering device for telephones, the combination with a subscribers set and the receiver-support therefor, of aregister attached to onep'art of said set'halid-actuated means for operating said register and a stop connected'to said receiver-support for locking said hand-actuated means when the telephone is not in use.

6. In a registering device for telephones, the combination With a subscribers set and the switch-arm therefor, a register, hand-op. erated means for actuating said register, and a locking-lever connected to said switch-arm and forming a stop to prevent the movement of said hand-actuated means.

7. In a registering device for telephones, the combination with a subscribers set and the switch-arm thereof, of a register attached to one part of said set, hand-actuated means for operating said register and an adjustable locking-lever connected to said switch-arm and forming a stop to prevent the operation of said hand-actuated means.

8. In a registerin device for telephones, the combination Wit a subseribers desk set, a re ister attached to the standard thereof, ha-n -operated means for actuating said register, a locking-lever connected to the receiver-sup orting arm and adapted to lock said han -operated means when the telephone is not in use, and an audible signal mounted upon said register and cooperating therewith to indicate to both the subscriber and the operator the record of a call.

In Witness whereof I have hereunto set my 30 hand this 26th day of September, A. D. 1903.

CHARLES T. BRADSHAW.

Witnesses:

CHAS. K. BENNETT, LEWIS H. VAN DUsEN. 

